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Table 3 PHQ-9 scores according to clinical cut-off ranges at pre- and post- treatment

From: CBT for depression: a pilot RCT comparing mobile phone vs. computer

  Pre treatment Post treatment
PHQ-9 Severity Status Mobile (n=14) Computer (n=20) Mobile (n= 11) Computer (n= 16)
None (0–9) 2/14 (14%) 2/20 (10%) 8/11 (73%) 10/16 (62%)
Mild (10–14) 6/14 (43%) 11/20 (55%) 2/11 (18%) 4/16 (25%)
Moderate (15–19) 4/14 (29%) 4/20 (20%) 1/11 (9%) 1/16 (6.5%)
Severe (20+) 2/14 (14%) 3/20 (15%) 0 1/16 (6.5%)
Missing Data 1 0 4 4
Meet criteria for MDD 12/14 (89%) 18/20 (90%) 3/11 (27%) 6/16 (37.5%)
  1. NB. Due to the time lag between recruitment and upon commencement of the program four participants did not meet criteria for MDD.